help('sys')

# import time  # 引入time模块
#
# ticks = time.time()
# print ("当前时间戳为:", ticks)

# import time
#
# localtime = time.localtime(time.time())
# print ("本地时间为 :", localtime)
#
# localtime = time.asctime( time.localtime(time.time()) )
# print ("本地时间为 :", localtime)

# import time
#
# # 格式化成2016-03-20 11:45:39形式
# print(time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()))
#
# # 格式化成Sat Mar 28 22:24:24 2016形式
# print(time.strftime("%a %b %d %H:%M:%S %Y", time.localtime()))
#
# # 将格式字符串转换为时间戳
# a = "Sat Mar 28 22:24:24 2016"
# print(time.mktime(time.strptime(a, "%a %b %d %H:%M:%S %Y")))

# import time
#
# print ("Start : %s" % time.ctime())
# time.sleep( 5 )
# print ("End : %s" % time.ctime())